Hi,I don't know if this question is appropriate for this forum.I would need a suggestion.I should run a linear regression on a quantitative trait for around 15000 SNPs in a sample including families and unrelated individuals.I wanted to try the q-fam total (family based association tests for quantitative traits --qfam-total) Plink package ( I never used this before). I started my analysis but I discovered with this package I can't use covariates. Do you ever used it?Do you have any other suggestions to perform my analysis?Thanks a lot

I never used plink to run such analises, however I have a similar population (mixed families and unrelated) and use GenABEL with mmscore. Everything works fine for me so I would advise you to use the same approach.